Chain of custody receipt

Source #42265

Cryptographic attestation that the document below was captured in Goblin House's archive at the timestamp shown, with the hash listed. If the original URL goes dark or its content changes, this receipt remains as evidence of what the public record looked like at capture time.

TitleSEC EDGAR: filing — John Larson (2019-06-19)
Original URLhttps://efts.sec.gov/LATEST/search-index?q=%22John%20Larson%22&dateRange=custom&forms=4,SC%2013D,SC%2013G,DEF%2014A,10-K,10-Q
PublicationSEC EDGAR
Source typesec_filing
Date2019-06-19
EntityJohn Larson
Captured1970-01-01T00:00:00.000Z UTC
Hash computed at2026-05-13T05:10:53.003Z UTC
SHA-25662166ffa532bc2256678345f111f5ad1f7299e7b94de7fe81f8faecc4e56349c
Content length592 bytes
Content preview (first 800 chars)
{
  "ciks": [
    "0001780040"
  ],
  "period_ending": null,
  "file_num": [
    "021-342294"
  ],
  "display_names": [
    "Irving Four-Plex Holdings, LLC  (CIK 0001780040)"
  ],
  "xsl": "xslFormDX01",
  "schema_version": "X0708",
  "sequence": 1,
  "root_forms": [
    "D"
  ],
  "file_date": "2019-06-19",
  "biz_states": [
    "TX"
  ],
  "sics": [],
  "form": "D",
  "adsh": "0001376474-19-000163",
  "film_num": [
    "19905748"
  ],
  "biz_locations": [
    "Dallas, TX"
  ],
  "file_type": "D",
  "file_description": null,
  "inc_states": [
    "TX"
  ],
  "items": [
    "06C"
  ]
}

Verifying this receipt

The hash above was computed as:

sha256( coalesce(url, '<no-url>') || '\n' || raw_content )

Anyone with a copy of the original document can verify the match:

  1. Take the URL field and the original document content.
  2. Concatenate url + '\n' + content and SHA-256 it.
  3. Compare to the SHA-256 row above.

Or POST the candidate content to /source/42265/verify and our server will compare for you:

curl -X POST https://www.goblinhouse.net/source/42265/verify \
  -H "Content-Type: text/plain" \
  --data-binary @document.txt

Companion machine-readable receipt: /source/42265/receipt.json